Regioselectivity of the addition of aEuro¢CCl3 and aEuro¢But radicals to (η2-C70)[Os(CO)(PPh3)2(CNBut)] n (n=1, 2): an ESR study

被引：0

作者：

Gasanov, R. G. ^{[1
]}

Martynova, E. V. ^{[1
]}

Tsikalova, M. V. ^{[1
]}

Stankevich, I. V. ^{[1
]}

Novikov, Yu. N. ^{[1
]}

机构：

[1] Russian Acad Sci, AN Nesmeyanov Organoelement Cpds Inst, Moscow 119991, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2010年 / 59卷 / 09期

关键词：

metallofullerenes; ESR spectroscopy; electronic effects; phosphoryl; trichloromethyl; tert-butyl radicals; regioselectivity; stability;

D O I：

10.1007/s11172-010-0300-3

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The addition of (CCl3)-C-aEuro cent and Bu-aEuro cent(t) radicals to (eta(2)-C-70)Os(CO)(PPh3)(2)(CNBut) (1) and (eta(2)-C-70)[Os(CO)(PPh3)(2)(CNBut)](2) (3) was studied by ESR spectroscopy. The metal fragment in complex 1 does not influence the regioselectivity of the addition of the radicals to it. The stability of the spin adducts formed upon addition of free radicals to complexes 1 and 3 is mainly governed by delocalization of the unpaired electron over three hexagonal rings.

引用

页码：1707 / 1712

页数：6

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